55388701690392 has 64 divisors (see below), whose sum is σ = 158256309369600. Its totient is φ = 15825055743360.

The previous prime is 55388701690373. The next prime is 55388701690393. The reversal of 55388701690392 is 29309610788355.

It is a super-2 number, since 2×55388701690392² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55388701690393) 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, 6362859 + ... + 12298917.

It is an arithmetic number, because the mean of its divisors is an integer number (2472754833900).

Almost surely, 2^{55388701690392} is an apocalyptic number.

It is an amenable number.

55388701690392 is an abundant number, since it is smaller than the sum of its proper divisors (102867607679208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55388701690392 is a wasteful number, since it uses less digits than its factorization.

55388701690392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5991616 (or 5991612 counting only the distinct ones).

The product of its (nonzero) digits is 97977600, while the sum is 66.

The spelling of 55388701690392 in words is "fifty-five trillion, three hundred eighty-eight billion, seven hundred one million, six hundred ninety thousand, three hundred ninety-two".