61502413 has 16 divisors (see below), whose sum is σ = 74749824. Its totient is φ = 49397760.

The previous prime is 61502393. The next prime is 61502429. The reversal of 61502413 is 31420516.

It is a cyclic number.

It is not a de Polignac number, because 61502413 - 2⁵ = 61502381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61502453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29578 + ... + 31588.

It is an arithmetic number, because the mean of its divisors is an integer number (4671864).

Almost surely, 2^61502413 is an apocalyptic number.

It is an amenable number.

61502413 is a deficient number, since it is larger than the sum of its proper divisors (13247411).

61502413 is a wasteful number, since it uses less digits than its factorization.

61502413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 61502413 is about 7842.3474164309. The cubic root of 61502413 is about 394.7275009928.

Adding to 61502413 its reverse (31420516), we get a palindrome (92922929).

The spelling of 61502413 in words is "sixty-one million, five hundred two thousand, four hundred thirteen".