40125615 has 16 divisors (see below), whose sum is σ = 64444416. Its totient is φ = 21319200.

The previous prime is 40125599. The next prime is 40125619. The reversal of 40125615 is 51652104.

It is not a de Polignac number, because 40125615 - 2⁴ = 40125599 is a prime.

It is a super-2 number, since 2×40125615² = 3220129958256450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40125619) 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, 871 + ... + 9000.

It is an arithmetic number, because the mean of its divisors is an integer number (4027776).

Almost surely, 2^40125615 is an apocalyptic number.

40125615 is a deficient number, since it is larger than the sum of its proper divisors (24318801).

40125615 is a wasteful number, since it uses less digits than its factorization.

40125615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10150.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 40125615 is about 6334.4782737018. The cubic root of 40125615 is about 342.3528129530.

Adding to 40125615 its reverse (51652104), we get a palindrome (91777719).

The spelling of 40125615 in words is "forty million, one hundred twenty-five thousand, six hundred fifteen".