625360401 has 6 divisors (see below), whose sum is σ = 903298370. Its totient is φ = 416906928.

The previous prime is 625360397. The next prime is 625360423. The reversal of 625360401 is 104063526.

625360401 is a `hidden beast` number, since 6 + 2 + 53 + 604 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 610337025 + 15023376 = 24705^2 + 3876^2 .

It is not a de Polignac number, because 625360401 - 2² = 625360397 is a prime.

It is a super-2 number, since 2×625360401² = 782151262277761602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625360601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34742236 + ... + 34742253.

Almost surely, 2^625360401 is an apocalyptic number.

It is an amenable number.

625360401 is a deficient number, since it is larger than the sum of its proper divisors (277937969).

625360401 is a wasteful number, since it uses less digits than its factorization.

625360401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69484495 (or 69484492 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 625360401 is about 25007.2069811884. The cubic root of 625360401 is about 855.1522823042.

The spelling of 625360401 in words is "six hundred twenty-five million, three hundred sixty thousand, four hundred one".