40025512956 has 48 divisors (see below), whose sum is σ = 109720291968. Its totient is φ = 11195947200.

The previous prime is 40025512873. The next prime is 40025512957. The reversal of 40025512956 is 65921552004.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40025512957) 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, 11660730 + ... + 11664161.

It is an arithmetic number, because the mean of its divisors is an integer number (2285839416).

Almost surely, 2^40025512956 is an apocalyptic number.

It is an amenable number.

40025512956 is an abundant number, since it is smaller than the sum of its proper divisors (69694779012).

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

40025512956 is a wasteful number, since it uses less digits than its factorization.

40025512956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23324922 (or 23324920 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 39.

The spelling of 40025512956 in words is "forty billion, twenty-five million, five hundred twelve thousand, nine hundred fifty-six".