55707501 has 4 divisors (see below), whose sum is σ = 74276672. Its totient is φ = 37138332.

The previous prime is 55707499. The next prime is 55707511. The reversal of 55707501 is 10570755.

55707501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55707501 - 2¹ = 55707499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55707511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9284581 + ... + 9284586.

It is an arithmetic number, because the mean of its divisors is an integer number (18569168).

Almost surely, 2^55707501 is an apocalyptic number.

It is an amenable number.

55707501 is a deficient number, since it is larger than the sum of its proper divisors (18569171).

55707501 is a wasteful number, since it uses less digits than its factorization.

55707501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18569170.

The product of its (nonzero) digits is 6125, while the sum is 30.

The square root of 55707501 is about 7463.7457754133. The cubic root of 55707501 is about 381.9189657522.

The spelling of 55707501 in words is "fifty-five million, seven hundred seven thousand, five hundred one".