2520145651 has 8 divisors (see below), whose sum is σ = 2628262784. Its totient is φ = 2413704960.

The previous prime is 2520145633. The next prime is 2520145657. The reversal of 2520145651 is 1565410252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2520145651 - 2²¹ = 2518048499 is a prime.

It is a super-2 number, since 2×2520145651² = 12702268204508427602, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2520145657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416040 + ... + 422053.

It is an arithmetic number, because the mean of its divisors is an integer number (328532848).

Almost surely, 2^2520145651 is an apocalyptic number.

2520145651 is a deficient number, since it is larger than the sum of its proper divisors (108117133).

2520145651 is an equidigital number, since it uses as much as digits as its factorization.

2520145651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838221.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 2520145651 is about 50201.0522897678. The cubic root of 2520145651 is about 1360.8446402205.

The spelling of 2520145651 in words is "two billion, five hundred twenty million, one hundred forty-five thousand, six hundred fifty-one".