40355025251 has 8 divisors (see below), whose sum is σ = 41020947408. Its totient is φ = 39689244000.

The previous prime is 40355025247. The next prime is 40355025257. The reversal of 40355025251 is 15252055304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40355025251 - 2² = 40355025247 is a prime.

It is a super-2 number, since 2×40355025251² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40355025257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 651821 + ... + 711041.

It is an arithmetic number, because the mean of its divisors is an integer number (5127618426).

Almost surely, 2^40355025251 is an apocalyptic number.

40355025251 is a deficient number, since it is larger than the sum of its proper divisors (665922157).

40355025251 is a wasteful number, since it uses less digits than its factorization.

40355025251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70453.

The product of its (nonzero) digits is 30000, while the sum is 32.

The spelling of 40355025251 in words is "forty billion, three hundred fifty-five million, twenty-five thousand, two hundred fifty-one".