54152640 has 84 divisors (see below), whose sum is σ = 186272424. Its totient is φ = 14439936.

The previous prime is 54152639. The next prime is 54152647. The reversal of 54152640 is 4625145.

54152640 is a `hidden beast` number, since 5 + 4 + 15 + 2 + 640 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54152647) 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, 6522 + ... + 12281.

Almost surely, 2^54152640 is an apocalyptic number.

It is an amenable number.

54152640 is an abundant number, since it is smaller than the sum of its proper divisors (132119784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54152640 is a wasteful number, since it uses less digits than its factorization.

54152640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18826 (or 18813 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 54152640 is about 7358.8477358891. The cubic root of 54152640 is about 378.3321176170.

Adding to 54152640 its reverse (4625145), we get a palindrome (58777785).

The spelling of 54152640 in words is "fifty-four million, one hundred fifty-two thousand, six hundred forty".