64253735 has 32 divisors (see below), whose sum is σ = 95424000. Its totient is φ = 40445568.

The previous prime is 64253729. The next prime is 64253759. The reversal of 64253735 is 53735246.

It is a cyclic number.

It is not a de Polignac number, because 64253735 - 2¹⁸ = 63991591 is a prime.

It is a super-2 number, since 2×64253735² = 8257084922900450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a junction number, because it is equal to n+sod(n) for n = 64253695 and 64253704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128516 + ... + 129014.

It is an arithmetic number, because the mean of its divisors is an integer number (2982000).

Almost surely, 2^64253735 is an apocalyptic number.

64253735 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

64253735 is a deficient number, since it is larger than the sum of its proper divisors (31170265).

64253735 is a wasteful number, since it uses less digits than its factorization.

64253735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807.

The product of its digits is 75600, while the sum is 35.

The square root of 64253735 is about 8015.8427504536. The cubic root of 64253735 is about 400.5279175345.

The spelling of 64253735 in words is "sixty-four million, two hundred fifty-three thousand, seven hundred thirty-five".