64502541 has 8 divisors (see below), whose sum is σ = 95559360. Its totient is φ = 43001676.

The previous prime is 64502521. The next prime is 64502551. The reversal of 64502541 is 14520546.

It is not a de Polignac number, because 64502541 - 2⁵ = 64502509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2388983 = 64502541 / (6 + 4 + 5 + 0 + 2 + 5 + 4 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64502521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1194465 + ... + 1194518.

It is an arithmetic number, because the mean of its divisors is an integer number (11944920).

Almost surely, 2^64502541 is an apocalyptic number.

It is an amenable number.

64502541 is a deficient number, since it is larger than the sum of its proper divisors (31056819).

64502541 is a wasteful number, since it uses less digits than its factorization.

64502541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2388992 (or 2388986 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 64502541 is about 8031.3473962966. The cubic root of 64502541 is about 401.0442319933.

The spelling of 64502541 in words is "sixty-four million, five hundred two thousand, five hundred forty-one".