55357242015 has 32 divisors (see below), whose sum is σ = 89844028416. Its totient is φ = 29099947520.

The previous prime is 55357242011. The next prime is 55357242023. The reversal of 55357242015 is 51024275355.

It is not a de Polignac number, because 55357242015 - 2² = 55357242011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55357242011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7273342 + ... + 7280948.

It is an arithmetic number, because the mean of its divisors is an integer number (2807625888).

Almost surely, 2^55357242015 is an apocalyptic number.

55357242015 is a deficient number, since it is larger than the sum of its proper divisors (34486786401).

55357242015 is a wasteful number, since it uses less digits than its factorization.

55357242015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14519.

The product of its (nonzero) digits is 210000, while the sum is 39.

The spelling of 55357242015 in words is "fifty-five billion, three hundred fifty-seven million, two hundred forty-two thousand, fifteen".