11631525 has 12 divisors (see below), whose sum is σ = 19230912. Its totient is φ = 6203440.

The previous prime is 11631509. The next prime is 11631527. The reversal of 11631525 is 52513611.

It is not a de Polignac number, because 11631525 - 2⁴ = 11631509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11631495 and 11631504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11631527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77469 + ... + 77618.

It is an arithmetic number, because the mean of its divisors is an integer number (1602576).

Almost surely, 2^11631525 is an apocalyptic number.

11631525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11631525 is a deficient number, since it is larger than the sum of its proper divisors (7599387).

11631525 is a wasteful number, since it uses less digits than its factorization.

11631525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155100 (or 155095 counting only the distinct ones).

The product of its digits is 900, while the sum is 24.

The square root of 11631525 is about 3410.5021624388. The cubic root of 11631525 is about 226.5751204226.

The spelling of 11631525 in words is "eleven million, six hundred thirty-one thousand, five hundred twenty-five".