55158012075 has 54 divisors (see below), whose sum is σ = 93337937076. Its totient is φ = 28741800960.

The previous prime is 55158012061. The next prime is 55158012083. The reversal of 55158012075 is 57021085155.

It is a happy number.

It is not a de Polignac number, because 55158012075 - 2²¹ = 55155914923 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 95594187 + ... + 95594763.

Almost surely, 2^55158012075 is an apocalyptic number.

55158012075 is a deficient number, since it is larger than the sum of its proper divisors (38179925001).

55158012075 is an frugal number, since it uses more digits than its factorization.

55158012075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261 (or 632 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 39.

The spelling of 55158012075 in words is "fifty-five billion, one hundred fifty-eight million, twelve thousand, seventy-five".