61254090 has 64 divisors (see below), whose sum is σ = 168998400. Its totient is φ = 15769152.

The previous prime is 61254073. The next prime is 61254091. The reversal of 61254090 is 9045216.

61254090 is a `hidden beast` number, since 612 + 5 + 40 + 9 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (61254091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3919 + ... + 11741.

It is an arithmetic number, because the mean of its divisors is an integer number (2640600).

Almost surely, 2^61254090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61254090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84499200).

61254090 is an abundant number, since it is smaller than the sum of its proper divisors (107744310).

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

61254090 is a wasteful number, since it uses less digits than its factorization.

61254090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7868 (or 7862 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 61254090 is about 7826.4992174024. The cubic root of 61254090 is about 394.1955319673.

The spelling of 61254090 in words is "sixty-one million, two hundred fifty-four thousand, ninety".