61496955 has 64 divisors (see below), whose sum is σ = 119723520. Its totient is φ = 29766528.

The previous prime is 61496947. The next prime is 61496983. The reversal of 61496955 is 55969416.

It is a happy number.

It is not a de Polignac number, because 61496955 - 2³ = 61496947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 61496955.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 117324 + ... + 117846.

It is an arithmetic number, because the mean of its divisors is an integer number (1870680).

Almost surely, 2^61496955 is an apocalyptic number.

61496955 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

61496955 is a deficient number, since it is larger than the sum of its proper divisors (58226565).

61496955 is a wasteful number, since it uses less digits than its factorization.

61496955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617 (or 611 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 61496955 is about 7841.9994261668. Note that the first 3 decimals coincide. The cubic root of 61496955 is about 394.7158240177.

The spelling of 61496955 in words is "sixty-one million, four hundred ninety-six thousand, nine hundred fifty-five".