4015431625 has 16 divisors (see below), whose sum is σ = 5081851008. Its totient is φ = 3167094000.

The previous prime is 4015431593. The next prime is 4015431631. The reversal of 4015431625 is 5261345104.

It is a happy number.

It is not a de Polignac number, because 4015431625 - 2⁵ = 4015431593 is a prime.

It is a super-2 number, since 2×4015431625² = 32247382270100281250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217347 + ... + 235096.

It is an arithmetic number, because the mean of its divisors is an integer number (317615688).

Almost surely, 2^4015431625 is an apocalyptic number.

It is an amenable number.

4015431625 is a deficient number, since it is larger than the sum of its proper divisors (1066419383).

4015431625 is an equidigital number, since it uses as much as digits as its factorization.

4015431625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452529 (or 452519 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 4015431625 is about 63367.4334733544. The cubic root of 4015431625 is about 1589.4397806167.

Adding to 4015431625 its reverse (5261345104), we get a palindrome (9276776729).

The spelling of 4015431625 in words is "four billion, fifteen million, four hundred thirty-one thousand, six hundred twenty-five".