625251272 has 8 divisors (see below), whose sum is σ = 1172346150. Its totient is φ = 312625632.

The previous prime is 625251247. The next prime is 625251283. The reversal of 625251272 is 272152526.

It can be written as a sum of positive squares in only one way, i.e., 595067236 + 30184036 = 24394^2 + 5494^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×625251272³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39078197 + ... + 39078212.

Almost surely, 2^625251272 is an apocalyptic number.

It is an amenable number.

625251272 is a deficient number, since it is larger than the sum of its proper divisors (547094878).

625251272 is a wasteful number, since it uses less digits than its factorization.

625251272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78156415 (or 78156411 counting only the distinct ones).

The product of its digits is 16800, while the sum is 32.

The square root of 625251272 is about 25005.0249350006. The cubic root of 625251272 is about 855.1025364072.

The spelling of 625251272 in words is "six hundred twenty-five million, two hundred fifty-one thousand, two hundred seventy-two".