215053254040 has 64 divisors (see below), whose sum is σ = 505076160960. Its totient is φ = 82253783040.

The previous prime is 215053254037. The next prime is 215053254047. The reversal of 215053254040 is 40452350512.

It is a junction number, because it is equal to n+sod(n) for n = 215053253993 and 215053254011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215053254047) 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, 2833872 + ... + 2908768.

It is an arithmetic number, because the mean of its divisors is an integer number (7891815015).

Almost surely, 2^215053254040 is an apocalyptic number.

215053254040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215053254040 is an abundant number, since it is smaller than the sum of its proper divisors (290022906920).

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

215053254040 is a wasteful number, since it uses less digits than its factorization.

215053254040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78052 (or 78048 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The spelling of 215053254040 in words is "two hundred fifteen billion, fifty-three million, two hundred fifty-four thousand, forty".