651525 has 48 divisors (see below), whose sum is σ = 1321344. Its totient is φ = 276480.

The previous prime is 651517. The next prime is 651587. The reversal of 651525 is 525156.

It is not a de Polignac number, because 651525 - 2³ = 651517 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 651495 and 651504.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 651525.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8889 + ... + 8961.

It is an arithmetic number, because the mean of its divisors is an integer number (27528).

2⁶⁵¹⁵²⁵ is an apocalyptic number.

It is an amenable number.

651525 is an abundant number, since it is smaller than the sum of its proper divisors (669819).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

651525 is a wasteful number, since it uses less digits than its factorization.

651525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110 (or 105 counting only the distinct ones).

The product of its digits is 1500, while the sum is 24.

The square root of 651525 is about 807.1709856034. The cubic root of 651525 is about 86.6916019638.

It can be divided in two parts, 651 and 525, that added together give a triangular number (1176 = T₄₈).

The spelling of 651525 in words is "six hundred fifty-one thousand, five hundred twenty-five".