625434531 has 8 divisors (see below), whose sum is σ = 839912640. Its totient is φ = 413956392.

The previous prime is 625434493. The next prime is 625434553. The reversal of 625434531 is 135434526.

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

It is not a de Polignac number, because 625434531 - 2¹³ = 625426339 is a prime.

It is a super-2 number, since 2×625434531² = 782336705134379922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 625434492 and 625434501.

It is not an unprimeable number, because it can be changed into a prime (625434031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 749505 + ... + 750338.

It is an arithmetic number, because the mean of its divisors is an integer number (104989080).

Almost surely, 2^625434531 is an apocalyptic number.

625434531 is a deficient number, since it is larger than the sum of its proper divisors (214478109).

625434531 is a wasteful number, since it uses less digits than its factorization.

625434531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1499985.

The product of its digits is 43200, while the sum is 33.

The square root of 625434531 is about 25008.6891099874. The cubic root of 625434531 is about 855.1860707852.

The spelling of 625434531 in words is "six hundred twenty-five million, four hundred thirty-four thousand, five hundred thirty-one".