525025511 has 4 divisors (see below), whose sum is σ = 528857952. Its totient is φ = 521193072.

The previous prime is 525025477. The next prime is 525025559. The reversal of 525025511 is 115520525.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 525025511 - 2¹⁸ = 524763367 is a prime.

It is a super-2 number, since 2×525025511² = 551303574401622242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525025591) 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, 1916015 + ... + 1916288.

It is an arithmetic number, because the mean of its divisors is an integer number (132214488).

Almost surely, 2^525025511 is an apocalyptic number.

525025511 is a deficient number, since it is larger than the sum of its proper divisors (3832441).

525025511 is a wasteful number, since it uses less digits than its factorization.

525025511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3832440.

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 525025511 is about 22913.4351636764. The cubic root of 525025511 is about 806.7273895239.

The spelling of 525025511 in words is "five hundred twenty-five million, twenty-five thousand, five hundred eleven".