54961157 has 4 divisors (see below), whose sum is σ = 55191360. Its totient is φ = 54730956.

The previous prime is 54961141. The next prime is 54961211. The reversal of 54961157 is 75116945.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75116945 = 5 ⋅15023389.

It is a cyclic number.

It is not a de Polignac number, because 54961157 - 2⁴ = 54961141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54961157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54961057) 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, 114743 + ... + 115220.

It is an arithmetic number, because the mean of its divisors is an integer number (13797840).

Almost surely, 2^54961157 is an apocalyptic number.

It is an amenable number.

54961157 is a deficient number, since it is larger than the sum of its proper divisors (230203).

54961157 is a wasteful number, since it uses less digits than its factorization.

54961157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230202.

The product of its digits is 37800, while the sum is 38.

The square root of 54961157 is about 7413.5792300346. The cubic root of 54961157 is about 380.2056988818.

The spelling of 54961157 in words is "fifty-four million, nine hundred sixty-one thousand, one hundred fifty-seven".