65552415 has 32 divisors (see below), whose sum is σ = 110025216. Its totient is φ = 33264000.

The previous prime is 65552407. The next prime is 65552423. The reversal of 65552415 is 51425556.

It is an interprime number because it is at equal distance from previous prime (65552407) and next prime (65552423).

It is not a de Polignac number, because 65552415 - 2³ = 65552407 is a prime.

It is a super-2 number, since 2×65552415² = 8594238224664450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86217 + ... + 86973.

It is an arithmetic number, because the mean of its divisors is an integer number (3438288).

Almost surely, 2^65552415 is an apocalyptic number.

65552415 is a deficient number, since it is larger than the sum of its proper divisors (44472801).

65552415 is a wasteful number, since it uses less digits than its factorization.

65552415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039.

The product of its digits is 30000, while the sum is 33.

The square root of 65552415 is about 8096.4445900654. Note that the first 3 decimals coincide. The cubic root of 65552415 is about 403.2083946212.

The spelling of 65552415 in words is "sixty-five million, five hundred fifty-two thousand, four hundred fifteen".