625538153 has 4 divisors (see below), whose sum is σ = 652735488. Its totient is φ = 598340820.

The previous prime is 625538141. The next prime is 625538183. The reversal of 625538153 is 351835526.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 625538153 - 2¹⁴ = 625521769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625538113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13598633 + ... + 13598678.

It is an arithmetic number, because the mean of its divisors is an integer number (163183872).

Almost surely, 2^625538153 is an apocalyptic number.

It is an amenable number.

625538153 is a deficient number, since it is larger than the sum of its proper divisors (27197335).

625538153 is a wasteful number, since it uses less digits than its factorization.

625538153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27197334.

The product of its digits is 108000, while the sum is 38.

The square root of 625538153 is about 25010.7607441277. The cubic root of 625538153 is about 855.2332972564.

The spelling of 625538153 in words is "six hundred twenty-five million, five hundred thirty-eight thousand, one hundred fifty-three".