55772135 has 8 divisors (see below), whose sum is σ = 68735616. Its totient is φ = 43411680.

The previous prime is 55772107. The next prime is 55772141. The reversal of 55772135 is 53127755.

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

It is not a de Polignac number, because 55772135 - 2⁸ = 55771879 is a prime.

It is a super-2 number, since 2×55772135² = 6221062084916450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55772095 and 55772104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150551 + ... + 150920.

It is an arithmetic number, because the mean of its divisors is an integer number (8591952).

Almost surely, 2^55772135 is an apocalyptic number.

55772135 is a deficient number, since it is larger than the sum of its proper divisors (12963481).

55772135 is a wasteful number, since it uses less digits than its factorization.

55772135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301513.

The product of its digits is 36750, while the sum is 35.

The square root of 55772135 is about 7468.0743836681. The cubic root of 55772135 is about 382.0666143891.

The spelling of 55772135 in words is "fifty-five million, seven hundred seventy-two thousand, one hundred thirty-five".