40757725 has 24 divisors (see below), whose sum is σ = 53514432. Its totient is φ = 30729600.

The previous prime is 40757723. The next prime is 40757737. The reversal of 40757725 is 52775704.

It is not a de Polignac number, because 40757725 - 2¹ = 40757723 is a prime.

It is a super-2 number, since 2×40757725² = 3322384294351250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40757723) 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 23 ways as a sum of consecutive naturals, for example, 41490 + ... + 42460.

It is an arithmetic number, because the mean of its divisors is an integer number (2229768).

Almost surely, 2^40757725 is an apocalyptic number.

It is an amenable number.

40757725 is a deficient number, since it is larger than the sum of its proper divisors (12756707).

40757725 is a wasteful number, since it uses less digits than its factorization.

40757725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077 (or 1072 counting only the distinct ones).

The product of its (nonzero) digits is 68600, while the sum is 37.

The square root of 40757725 is about 6384.1777074264. The cubic root of 40757725 is about 344.1411811206.

The spelling of 40757725 in words is "forty million, seven hundred fifty-seven thousand, seven hundred twenty-five".