61054638 has 32 divisors (see below), whose sum is σ = 129494400. Its totient is φ = 19136736.

The previous prime is 61054607. The next prime is 61054649. The reversal of 61054638 is 83645016.

It is a super-2 number, since 2×61054638² = 7455337642622088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61054599 and 61054608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13920 + ... + 17772.

It is an arithmetic number, because the mean of its divisors is an integer number (4046700).

Almost surely, 2^61054638 is an apocalyptic number.

61054638 is an abundant number, since it is smaller than the sum of its proper divisors (68439762).

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

61054638 is a wasteful number, since it uses less digits than its factorization.

61054638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4016.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 61054638 is about 7813.7467325221. The cubic root of 61054638 is about 393.7672145661.

The spelling of 61054638 in words is "sixty-one million, fifty-four thousand, six hundred thirty-eight".