87783525 has 36 divisors (see below), whose sum is σ = 164075808. Its totient is φ = 44779680.

The previous prime is 87783491. The next prime is 87783533. The reversal of 87783525 is 52538778.

It is not a de Polignac number, because 87783525 - 2⁹ = 87783013 is a prime.

It is a super-2 number, since 2×87783525² = 15411894522851250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3307 + ... + 13656.

Almost surely, 2^87783525 is an apocalyptic number.

It is an amenable number.

87783525 is a deficient number, since it is larger than the sum of its proper divisors (76292283).

87783525 is a wasteful number, since it uses less digits than its factorization.

87783525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17002 (or 16994 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The square root of 87783525 is about 9369.2862588353. The cubic root of 87783525 is about 444.4309943268.

The spelling of 87783525 in words is "eighty-seven million, seven hundred eighty-three thousand, five hundred twenty-five".