55261494 has 16 divisors (see below), whose sum is σ = 122803440. Its totient is φ = 18420480.

The previous prime is 55261489. The next prime is 55261513. The reversal of 55261494 is 49416255.

55261494 is a `hidden beast` number, since 552 + 6 + 14 + 94 = 666.

It is a super-2 number, since 2×55261494² = 6107665438224072, which contains 22 as substring.

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, 511627 + ... + 511734.

It is an arithmetic number, because the mean of its divisors is an integer number (7675215).

Almost surely, 2^55261494 is an apocalyptic number.

55261494 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

55261494 is an abundant number, since it is smaller than the sum of its proper divisors (67541946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55261494 is a wasteful number, since it uses less digits than its factorization.

55261494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023372 (or 1023366 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 55261494 is about 7433.8075035610. The cubic root of 55261494 is about 380.8969899460.

It can be divided in two parts, 55261 and 494, that added together give a palindrome (55755).

The spelling of 55261494 in words is "fifty-five million, two hundred sixty-one thousand, four hundred ninety-four".