625142312 has 8 divisors (see below), whose sum is σ = 1172141850. Its totient is φ = 312571152.

The previous prime is 625142239. The next prime is 625142339. The reversal of 625142312 is 213241526.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 342028036 + 283114276 = 18494^2 + 16826^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39071387 + ... + 39071402.

Almost surely, 2^625142312 is an apocalyptic number.

It is an amenable number.

625142312 is a deficient number, since it is larger than the sum of its proper divisors (546999538).

625142312 is a wasteful number, since it uses less digits than its factorization.

625142312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78142795 (or 78142791 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 625142312 is about 25002.8460779968. The cubic root of 625142312 is about 855.0528617728.

Adding to 625142312 its reverse (213241526), we get a palindrome (838383838).

The spelling of 625142312 in words is "six hundred twenty-five million, one hundred forty-two thousand, three hundred twelve".