55074732 has 12 divisors (see below), whose sum is σ = 128507736. Its totient is φ = 18358240.

The previous prime is 55074727. The next prime is 55074739. The reversal of 55074732 is 23747055.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×55074732² = 6066452209743648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55074693 and 55074702.

It is not an unprimeable number, because it can be changed into a prime (55074739) 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, 2294769 + ... + 2294792.

It is an arithmetic number, because the mean of its divisors is an integer number (10708978).

Almost surely, 2^55074732 is an apocalyptic number.

It is an amenable number.

55074732 is an abundant number, since it is smaller than the sum of its proper divisors (73433004).

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

55074732 is a wasteful number, since it uses less digits than its factorization.

55074732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4589568 (or 4589566 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 33.

The square root of 55074732 is about 7421.2352071606. The cubic root of 55074732 is about 380.4674119059.

The spelling of 55074732 in words is "fifty-five million, seventy-four thousand, seven hundred thirty-two".