55552151 has 4 divisors (see below), whose sum is σ = 56462904. Its totient is φ = 54641400.

The previous prime is 55552111. The next prime is 55552157. The reversal of 55552151 is 15125555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15125555 = 5 ⋅3025111.

It is a cyclic number.

It is not a de Polignac number, because 55552151 - 2¹⁰ = 55551127 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 (55552157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455285 + ... + 455406.

It is an arithmetic number, because the mean of its divisors is an integer number (14115726).

Almost surely, 2^55552151 is an apocalyptic number.

55552151 is a deficient number, since it is larger than the sum of its proper divisors (910753).

55552151 is an equidigital number, since it uses as much as digits as its factorization.

55552151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910752.

The product of its digits is 6250, while the sum is 29.

The square root of 55552151 is about 7453.3315369706. The cubic root of 55552151 is about 381.5636195387.

The spelling of 55552151 in words is "fifty-five million, five hundred fifty-two thousand, one hundred fifty-one".