61506054 has 20 divisors (see below), whose sum is σ = 137819484. Its totient is φ = 20501964.

The previous prime is 61506041. The next prime is 61506073. The reversal of 61506054 is 45060516.

It is a happy number.

61506054 is a `hidden beast` number, since 6 + 1 + 50 + 605 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 189672 + ... + 189995.

Almost surely, 2^61506054 is an apocalyptic number.

61506054 is an abundant number, since it is smaller than the sum of its proper divisors (76313430).

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

61506054 is a wasteful number, since it uses less digits than its factorization.

61506054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379681 (or 379672 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 61506054 is about 7842.5795501225. The cubic root of 61506054 is about 394.7352902507.

The spelling of 61506054 in words is "sixty-one million, five hundred six thousand, fifty-four".