425450531 has 16 divisors (see below), whose sum is σ = 483418368. Its totient is φ = 370994400.

The previous prime is 425450521. The next prime is 425450567. The reversal of 425450531 is 135054524.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425450531 is a prime.

It is a super-2 number, since 2×425450531² = 362016308656363922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 425450494 and 425450503.

It is not an unprimeable number, because it can be changed into a prime (425450521) 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, 21536 + ... + 36258.

It is an arithmetic number, because the mean of its divisors is an integer number (30213648).

Almost surely, 2^425450531 is an apocalyptic number.

425450531 is a deficient number, since it is larger than the sum of its proper divisors (57967837).

425450531 is a wasteful number, since it uses less digits than its factorization.

425450531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14842.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 425450531 is about 20626.4522155411. The cubic root of 425450531 is about 752.1128752731.

The spelling of 425450531 in words is "four hundred twenty-five million, four hundred fifty thousand, five hundred thirty-one".