55537545 has 16 divisors (see below), whose sum is σ = 101554560. Its totient is φ = 25388544.

The previous prime is 55537543. The next prime is 55537567. The reversal of 55537545 is 54573555.

It is not a de Polignac number, because 55537545 - 2¹ = 55537543 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55537543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264360 + ... + 264569.

It is an arithmetic number, because the mean of its divisors is an integer number (6347160).

Almost surely, 2^55537545 is an apocalyptic number.

It is an amenable number.

55537545 is a deficient number, since it is larger than the sum of its proper divisors (46017015).

55537545 is a wasteful number, since it uses less digits than its factorization.

55537545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528944.

The product of its digits is 262500, while the sum is 39.

The square root of 55537545 is about 7452.3516422670. The cubic root of 55537545 is about 381.5301758488.

The spelling of 55537545 in words is "fifty-five million, five hundred thirty-seven thousand, five hundred forty-five".