55390207401 has 40 divisors (see below), whose sum is σ = 86559574464. Its totient is φ = 35231850720.

The previous prime is 55390207343. The next prime is 55390207427. The reversal of 55390207401 is 10470209355.

It is not a de Polignac number, because 55390207401 - 2⁶ = 55390207337 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55390217401) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 702166 + ... + 777056.

Almost surely, 2^55390207401 is an apocalyptic number.

It is an amenable number.

55390207401 is a deficient number, since it is larger than the sum of its proper divisors (31169367063).

55390207401 is a wasteful number, since it uses less digits than its factorization.

55390207401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75323 (or 75314 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The spelling of 55390207401 in words is "fifty-five billion, three hundred ninety million, two hundred seven thousand, four hundred one".