625274657 has 8 divisors (see below), whose sum is σ = 717988032. Its totient is φ = 533408400.

The previous prime is 625274647. The next prime is 625274717. The reversal of 625274657 is 756472526.

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

It is not a de Polignac number, because 625274657 - 2¹⁸ = 625012513 is a prime.

It is a super-3 number, since 3×625274657³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625274647) 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, 210194 + ... + 213147.

It is an arithmetic number, because the mean of its divisors is an integer number (89748504).

Almost surely, 2^625274657 is an apocalyptic number.

It is an amenable number.

625274657 is a deficient number, since it is larger than the sum of its proper divisors (92713375).

625274657 is a wasteful number, since it uses less digits than its factorization.

625274657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423559.

The product of its digits is 705600, while the sum is 44.

The square root of 625274657 is about 25005.4925366408. The cubic root of 625274657 is about 855.1131968272.

The spelling of 625274657 in words is "six hundred twenty-five million, two hundred seventy-four thousand, six hundred fifty-seven".