54188402 has 8 divisors (see below), whose sum is σ = 81576876. Its totient is φ = 26996112.

The previous prime is 54188389. The next prime is 54188413. The reversal of 54188402 is 20488145.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 53597041 + 591361 = 7321^2 + 769^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×54188402² = 5872765822627208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48353 + ... + 49460.

Almost surely, 2^54188402 is an apocalyptic number.

54188402 is a deficient number, since it is larger than the sum of its proper divisors (27388474).

54188402 is a wasteful number, since it uses less digits than its factorization.

54188402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98092.

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 54188402 is about 7361.2771989649. The cubic root of 54188402 is about 378.4153818613.

The spelling of 54188402 in words is "fifty-four million, one hundred eighty-eight thousand, four hundred two".