61552998 has 24 divisors (see below), whose sum is σ = 143624208. Its totient is φ = 18939312.

The previous prime is 61552987. The next prime is 61553003. The reversal of 61552998 is 89925516.

61552998 is a `hidden beast` number, since 6 + 1 + 552 + 9 + 98 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131290 + ... + 131757.

It is an arithmetic number, because the mean of its divisors is an integer number (5984342).

Almost surely, 2^61552998 is an apocalyptic number.

61552998 is an abundant number, since it is smaller than the sum of its proper divisors (82071210).

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

61552998 is a wasteful number, since it uses less digits than its factorization.

61552998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263068 (or 263065 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 61552998 is about 7845.5718720817. The cubic root of 61552998 is about 394.8356908880.

The spelling of 61552998 in words is "sixty-one million, five hundred fifty-two thousand, nine hundred ninety-eight".