40625571231 has 48 divisors (see below), whose sum is σ = 69826655808. Its totient is φ = 22277030400.

The previous prime is 40625571229. The next prime is 40625571241. The reversal of 40625571231 is 13217552604.

40625571231 is a `hidden beast` number, since 4 + 0 + 62 + 5 + 571 + 23 + 1 = 666.

It is not a de Polignac number, because 40625571231 - 2¹ = 40625571229 is a prime.

It is a super-2 number, since 2×40625571231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40625571241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28645 + ... + 286481.

It is an arithmetic number, because the mean of its divisors is an integer number (1454721996).

Almost surely, 2^40625571231 is an apocalyptic number.

40625571231 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

40625571231 is a deficient number, since it is larger than the sum of its proper divisors (29201084577).

40625571231 is a wasteful number, since it uses less digits than its factorization.

40625571231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257952 (or 257949 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 40625571231 in words is "forty billion, six hundred twenty-five million, five hundred seventy-one thousand, two hundred thirty-one".