55756157542 has 4 divisors (see below), whose sum is σ = 83634236316. Its totient is φ = 27878078770.

The previous prime is 55756157531. The next prime is 55756157543. The reversal of 55756157542 is 24575165755.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 55756157542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55756157543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13939039384 + ... + 13939039387.

It is an arithmetic number, because the mean of its divisors is an integer number (20908559079).

Almost surely, 2^55756157542 is an apocalyptic number.

55756157542 is a deficient number, since it is larger than the sum of its proper divisors (27878078774).

55756157542 is a wasteful number, since it uses less digits than its factorization.

55756157542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27878078773.

The product of its digits is 7350000, while the sum is 52.

The spelling of 55756157542 in words is "fifty-five billion, seven hundred fifty-six million, one hundred fifty-seven thousand, five hundred forty-two".