54402131 has 4 divisors (see below), whose sum is σ = 62173872. Its totient is φ = 46630392.

The previous prime is 54402119. The next prime is 54402133. The reversal of 54402131 is 13120445.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54402131 - 2⁶ = 54402067 is a prime.

It is a super-2 number, since 2×54402131² = 5919183714682322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54402133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3885860 + ... + 3885873.

It is an arithmetic number, because the mean of its divisors is an integer number (15543468).

Almost surely, 2^54402131 is an apocalyptic number.

54402131 is a deficient number, since it is larger than the sum of its proper divisors (7771741).

54402131 is an equidigital number, since it uses as much as digits as its factorization.

54402131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7771740.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 54402131 is about 7375.7800265463. The cubic root of 54402131 is about 378.9122424289.

Adding to 54402131 its reverse (13120445), we get a palindrome (67522576).

The spelling of 54402131 in words is "fifty-four million, four hundred two thousand, one hundred thirty-one".