55740465 has 72 divisors (see below), whose sum is σ = 110171880. Its totient is φ = 26019840.

The previous prime is 55740439. The next prime is 55740469. The reversal of 55740465 is 56404755.

It is a happy number.

55740465 is a `hidden beast` number, since 557 + 40 + 4 + 65 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4460544 + 51279921 = 2112^2 + 7161^2 .

It is not a de Polignac number, because 55740465 - 2⁶ = 55740401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55740469) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 157729 + ... + 158081.

It is an arithmetic number, because the mean of its divisors is an integer number (1530165).

Almost surely, 2^55740465 is an apocalyptic number.

55740465 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55740465 is a deficient number, since it is larger than the sum of its proper divisors (54431415).

55740465 is a wasteful number, since it uses less digits than its factorization.

55740465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The square root of 55740465 is about 7465.9537234033. The cubic root of 55740465 is about 381.9942823263.

The spelling of 55740465 in words is "fifty-five million, seven hundred forty thousand, four hundred sixty-five".