55235537040 has 40 divisors (see below), whose sum is σ = 171230165568. Its totient is φ = 14729476480.

The previous prime is 55235537011. The next prime is 55235537057. The reversal of 55235537040 is 4073553255.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 55235537040.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115073796 + ... + 115074275.

Almost surely, 2^55235537040 is an apocalyptic number.

It is an amenable number.

55235537040 is an abundant number, since it is smaller than the sum of its proper divisors (115994628528).

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

55235537040 is a wasteful number, since it uses less digits than its factorization.

55235537040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230148087 (or 230148081 counting only the distinct ones).

The product of its (nonzero) digits is 315000, while the sum is 39.

The spelling of 55235537040 in words is "fifty-five billion, two hundred thirty-five million, five hundred thirty-seven thousand, forty".