425532513 has 24 divisors (see below), whose sum is σ = 660785952. Its totient is φ = 242875584.

The previous prime is 425532509. The next prime is 425532521. The reversal of 425532513 is 315235524.

It is not a de Polignac number, because 425532513 - 2² = 425532509 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (425532413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 242706 + ... + 244452.

It is an arithmetic number, because the mean of its divisors is an integer number (27532748).

Almost surely, 2^425532513 is an apocalyptic number.

It is an amenable number.

425532513 is a deficient number, since it is larger than the sum of its proper divisors (235253439).

425532513 is a wasteful number, since it uses less digits than its factorization.

425532513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3421 (or 3414 counting only the distinct ones).

The product of its digits is 18000, while the sum is 30.

The square root of 425532513 is about 20628.4394223121. The cubic root of 425532513 is about 752.1611815219.

The spelling of 425532513 in words is "four hundred twenty-five million, five hundred thirty-two thousand, five hundred thirteen".