54421512 has 16 divisors (see below), whose sum is σ = 136053840. Its totient is φ = 18140496.

The previous prime is 54421501. The next prime is 54421537. The reversal of 54421512 is 21512445.

It is a super-2 number, since 2×54421512² = 5923401936732288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 2267563 = 54421512 / (5 + 4 + 4 + 2 + 1 + 5 + 1 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1133758 + ... + 1133805.

It is an arithmetic number, because the mean of its divisors is an integer number (8503365).

Almost surely, 2^54421512 is an apocalyptic number.

It is an amenable number.

54421512 is an abundant number, since it is smaller than the sum of its proper divisors (81632328).

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

54421512 is a wasteful number, since it uses less digits than its factorization.

54421512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2267572 (or 2267568 counting only the distinct ones).

The product of its digits is 1600, while the sum is 24.

The square root of 54421512 is about 7377.0937366960. The cubic root of 54421512 is about 378.9572334745.

Adding to 54421512 its reverse (21512445), we get a palindrome (75933957).

The spelling of 54421512 in words is "fifty-four million, four hundred twenty-one thousand, five hundred twelve".