625043142 has 56 divisors (see below), whose sum is σ = 1451154240. Its totient is φ = 201612240.

The previous prime is 625043113. The next prime is 625043143. The reversal of 625043142 is 241340526.

625043142 is a `hidden beast` number, since 625 + 0 + 4 + 31 + 4 + 2 = 666.

It is a super-2 number, since 2×625043142² = 781357858722464328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625043143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 38284 + ... + 52112.

Almost surely, 2^625043142 is an apocalyptic number.

625043142 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 625043142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (725577120).

625043142 is an abundant number, since it is smaller than the sum of its proper divisors (826111098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

625043142 is a wasteful number, since it uses less digits than its factorization.

625043142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13880 (or 13865 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 625043142 is about 25000.8628251107. The cubic root of 625043142 is about 855.0076453610.

Adding to 625043142 its reverse (241340526), we get a palindrome (866383668).

The spelling of 625043142 in words is "six hundred twenty-five million, forty-three thousand, one hundred forty-two".