40525235397 has 48 divisors (see below), whose sum is σ = 60283641600. Its totient is φ = 26221104000.

The previous prime is 40525235393. The next prime is 40525235447. The reversal of 40525235397 is 79353252504.

40525235397 is a `hidden beast` number, since 4 + 0 + 5 + 25 + 235 + 397 = 666.

It is not a de Polignac number, because 40525235397 - 2² = 40525235393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40525235393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31148647 + ... + 31149947.

It is an arithmetic number, because the mean of its divisors is an integer number (1255909200).

Almost surely, 2^40525235397 is an apocalyptic number.

40525235397 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

40525235397 is a deficient number, since it is larger than the sum of its proper divisors (19758406203).

40525235397 is a wasteful number, since it uses less digits than its factorization.

40525235397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914 (or 1911 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 45.

The spelling of 40525235397 in words is "forty billion, five hundred twenty-five million, two hundred thirty-five thousand, three hundred ninety-seven".