6625631450 has 24 divisors (see below), whose sum is σ = 12748631580. Its totient is φ = 2558864000.

The previous prime is 6625631431. The next prime is 6625631461. The reversal of 6625631450 is 541365266.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1046587201 + 5579044249 = 32351^2 + 74693^2 .

It is a super-2 number, since 2×6625631450² = 87797984222458205000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2283251 + ... + 2286150.

Almost surely, 2^6625631450 is an apocalyptic number.

6625631450 is a deficient number, since it is larger than the sum of its proper divisors (6123000130).

6625631450 is a wasteful number, since it uses less digits than its factorization.

6625631450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4569442 (or 4569437 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

The square root of 6625631450 is about 81397.9818545890. The cubic root of 6625631450 is about 1878.2025458221.

The spelling of 6625631450 in words is "six billion, six hundred twenty-five million, six hundred thirty-one thousand, four hundred fifty".