6425015631 has 8 divisors (see below), whose sum is σ = 8567940864. Its totient is φ = 4282717080.

The previous prime is 6425015617. The next prime is 6425015647. The reversal of 6425015631 is 1365105246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6425015631 - 2⁵ = 6425015599 is a prime.

It is a super-2 number, since 2×6425015631² = 82561651717188656322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6425015592 and 6425015601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6425015131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132201 + ... + 174146.

It is an arithmetic number, because the mean of its divisors is an integer number (1070992608).

Almost surely, 2^6425015631 is an apocalyptic number.

6425015631 is a deficient number, since it is larger than the sum of its proper divisors (2142925233).

6425015631 is a wasteful number, since it uses less digits than its factorization.

6425015631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313341.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 6425015631 is about 80156.1952128468. The cubic root of 6425015631 is about 1859.0513942532.

The spelling of 6425015631 in words is "six billion, four hundred twenty-five million, fifteen thousand, six hundred thirty-one".