55151011501172 has 48 divisors (see below), whose sum is σ = 97300744128000. Its totient is φ = 27351850763520.

The previous prime is 55151011501171. The next prime is 55151011501249. The reversal of 55151011501172 is 27110511015155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55151011501171) 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, 407875208 + ... + 408010400.

It is an arithmetic number, because the mean of its divisors is an integer number (2027098836000).

Almost surely, 2^{55151011501172} is an apocalyptic number.

It is an amenable number.

55151011501172 is a deficient number, since it is larger than the sum of its proper divisors (42149732626828).

55151011501172 is a wasteful number, since it uses less digits than its factorization.

55151011501172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137136 (or 137134 counting only the distinct ones).

The product of its (nonzero) digits is 8750, while the sum is 35.

The spelling of 55151011501172 in words is "fifty-five trillion, one hundred fifty-one billion, eleven million, five hundred one thousand, one hundred seventy-two".