625363402465 has 4 divisors (see below), whose sum is σ = 750436082964. Its totient is φ = 500290721968.

The previous prime is 625363402451. The next prime is 625363402583. The reversal of 625363402465 is 564204363526.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 203953398544 + 421410003921 = 451612^2 + 649161^2 .

It is a cyclic number.

It is not a de Polignac number, because 625363402465 - 2²¹ = 625361305313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62536340242 + ... + 62536340251.

It is an arithmetic number, because the mean of its divisors is an integer number (187609020741).

Almost surely, 2^625363402465 is an apocalyptic number.

It is an amenable number.

625363402465 is a deficient number, since it is larger than the sum of its proper divisors (125072680499).

625363402465 is a wasteful number, since it uses less digits than its factorization.

625363402465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125072680498.

The product of its (nonzero) digits is 3110400, while the sum is 46.

The spelling of 625363402465 in words is "six hundred twenty-five billion, three hundred sixty-three million, four hundred two thousand, four hundred sixty-five".