625404355220523 has 16 divisors (see below), whose sum is σ = 892637795145600. Its totient is φ = 388297440884160.

The previous prime is 625404355220473. The next prime is 625404355220531. The reversal of 625404355220523 is 325022553404526.

It is not a de Polignac number, because 625404355220523 - 2²¹ = 625404353123371 is a prime.

It is a super-2 number, since 2×625404355220523² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (625404355200523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92983100298 + ... + 92983107023.

It is an arithmetic number, because the mean of its divisors is an integer number (55789862196600).

Almost surely, 2^{625404355220523} is an apocalyptic number.

625404355220523 is a deficient number, since it is larger than the sum of its proper divisors (267233439925077).

625404355220523 is a wasteful number, since it uses less digits than its factorization.

625404355220523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185966207402.

The product of its (nonzero) digits is 8640000, while the sum is 48.

The spelling of 625404355220523 in words is "six hundred twenty-five trillion, four hundred four billion, three hundred fifty-five million, two hundred twenty thousand, five hundred twenty-three".