55131377954 has 8 divisors (see below), whose sum is σ = 84932122908. Its totient is φ = 26820670320.

The previous prime is 55131377947. The next prime is 55131377969. The reversal of 55131377954 is 45977313155.

It can be written as a sum of positive squares in 2 ways, for example, as 43157985025 + 11973392929 = 207745^2 + 109423^2 .

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

It is a super-2 number, since 2×55131377954² (a number of 22 digits) 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, 372509237 + ... + 372509384.

Almost surely, 2^55131377954 is an apocalyptic number.

55131377954 is a deficient number, since it is larger than the sum of its proper divisors (29800744954).

55131377954 is a wasteful number, since it uses less digits than its factorization.

55131377954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745018660.

The product of its digits is 1984500, while the sum is 50.

The spelling of 55131377954 in words is "fifty-five billion, one hundred thirty-one million, three hundred seventy-seven thousand, nine hundred fifty-four".