55515033519 has 32 divisors (see below), whose sum is σ = 85725008640. Its totient is φ = 31582656000.

The previous prime is 55515033517. The next prime is 55515033533. The reversal of 55515033519 is 91533051555.

It is a happy number.

It is not a de Polignac number, because 55515033519 - 2¹ = 55515033517 is a prime.

It is a super-2 number, since 2×55515033519² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55515033517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82069 + ... + 343169.

It is an arithmetic number, because the mean of its divisors is an integer number (2678906520).

Almost surely, 2^55515033519 is an apocalyptic number.

55515033519 is a deficient number, since it is larger than the sum of its proper divisors (30209975121).

55515033519 is a wasteful number, since it uses less digits than its factorization.

55515033519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261511.

The product of its (nonzero) digits is 253125, while the sum is 42.

The spelling of 55515033519 in words is "fifty-five billion, five hundred fifteen million, thirty-three thousand, five hundred nineteen".